# Copyright 2016 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from contextlib import contextmanager

import grpc


@contextmanager
def context(grpc_context):
    """A context manager that automatically handles KeyError."""
    try:
        yield
    except KeyError as key_error:
        grpc_context.code(grpc.StatusCode.NOT_FOUND)
        grpc_context.details(f"Unable to find the item keyed by {key_error}")
